Clasp.



E. SWEDLUND.

I CLASP.

APPLICATION FILED MAY 25, 1915.

Lgg, l Patented Ja11.25, 1916.

many other uses.

BRICK a'. swniiLUNiJ, or WILLIs'roN, Nouanl DAKOTA.

CLASP.

tisanes.

To all whom t may concern: Y Be it known that I, Enron J'. SWEDLUND, acitizen of the United States, residing at Williston, inthe county ofWilliams 'and State. of North Dakota,.have invented certain new and.useful Improvements in Clasps, of

which the following is a specification.

This invention relates to certain new. and

y*useful improvementsl in clasps or couplings,

well suited for neck-chains or other'articles of jewelry, butnotnecessarily conned to the jewelry trade alone as it is capableof Itvhasfor its *objects among others to provide a simple and neat.appearing clasp, composed of few parts, those readily assem- .bled,positive in their action vvand ;o`nstit ut ing a clasp which cannot be.unfast'ened by accident and ,which will in itself constitute a. i'perfect swivel so that a chain attached thereto will not becometwisted'. Itis easily operated, capable' of manufacture at -small cost.

y by suitable dies from 'tubing of different metals or materials, or maybe cast or turned or otherwise formadas' may be found most fOtherobjects. and advantages f the invention will hereinafter appear andlthe novel features thereof will1bc particularlyv pointed out in thelappended claims.

The invention `is clearlyillu'strated in the accompanying drawings,'which with the numerals of reference marked thereon, form a part ofthis specification, and in which- Figure lis a side elevation .of my improved clasp.. Fig. 2 is a substantiallycentral'longitudinal sectionthrough the same. Fig. 3, is an elevation of theA inside sleeve.

Fig. 4 isan end view of Fig. 3,'looking the direction of the arrow. Likenumerals of reference indicate like parts throughout thedii'erent views.

In constructing my .improved clasp A.or' coupling, I employ anoutside'shell 1wh1ch maybe of any suitable material and conf tour, andstruck up be dies or given the requisite form by any suitable means.Itis. shown as provided with an eye 2 for the i attachment of one end ofa chainor, other ligament, according to the Vuse to which it is to beput. This outer shell hasya closed end. 3 and an open end 4, the bore orpassage 5 leading from the open .end extending forsubstantlally'one-half of the length, or a little more, lof the shell,as seen in Fig. 2 wherev it is enlarged,` as seen at 6, the -vresultantta` l' -Specicatieon of Letters Patent. application mea nay 25, i915.serial No. 30,346.

` rammed .iaiifeaiaie peredwall forming a shoulder 7, as seen clearly in2.

8 is the inn`er sleeve formed preferably from .a .single piece lo f jsheet 'material stamped or otherwise given the requisite form, havinglongitudinal slits 19 extending for the greater portion of its lengthand the material at one end being doubled upon itself, as seen in Fig.2, lto form anannular enlargement 10 which is substant-ially of the'same cross area as that of the shell 1. This end may or'may not haveaconcavity l1 to receive th adjacent port-ion 'of the eye -or ring 12.on the locking member 13. The opposite end ofthe .sleeve is turned 'uponitself or otherwise cons ructed to form `the annular bead 14 whichissevered by the slots 9 here'toreferred to.

The .lockingmember liasat its inner` end a. head 15. adjacent which is;an annular groove 16, seen clearly in Fig. 2. The inside walloftheshell-is smaller at the open end and larger inside to accommodate thelarger 'end or @bead-on the sleeve. The sleeve is made of `such size asto practically ]ust fit the opening in the shell, but by into the shellby a little pressure, owing-to the yieldingnature of the sleeve and whenin position within the outerv shell it is 'free to slide a limiteddistance inA or out. When the loclring member 13 isfinserted in thesleeve, it will' carry tlie-sleeve inward as far as it can gaand springit enough to allow the bead or liange 14 on the sleeve to rest in fthegrooverof the locking member and as the reason of its being slit in amultiplicity of i I places, as shown, it can be readily pushed lockingmember is .pulled outward the sleeve will be'carried along with'it untilthe bead or., flange 14.. on the inner end ,of the sleeve comes. incontact with the beveled wall of the vshell and finally against theshoulder 7 and cannot bezpulled out. The

'harder they pull on the locking member, the Aharder it` will grip. TnFig. 2 the parts are vlshown as .distended, with the bead or flange ofthe sleeve engaging the shoulder on ythe.

inner wall of the shell.

To unclasp orl remove the locking mem los ber, allv that is necessarytodo isto push the sleeveand locking` member into the shell so thattheshoulderfl? of the sleeve comes in. contact, with the adjacent end wall18 Iof thev .outer sh' lland then hold the sleeve and shell vtightlytogether and pull the locking memberfout. .This iS the only manner inwhich the locking member can be removed. It will be understood that whenthe inner 'sleeve is pushed in as just described, itsl inner end and itsflange or bead 14 are forced beyond thel tapered wall of the-sleeve andinto the enlarged space 19, as seen in Fig. 2, where the slitted portionof the sleevel is free to expand and allow the lockin g member vto bereadily withdraw n It w1ll be evident that the inner sleeve and' thelocking member are free to rotate within the outer shell, thusconstituting` a swivel, so that a chain. attached thereto cannot becometwisted.

Modificationsin details may be resorted to without departing from thespirit of the invention Lor sacrificing any of its advantages.

What is claimed as new is j In a clasp of the character described,

`an outer shell having a longitudinal opening with tapered wall and anannular'enlargement with resultant shoulder, a sleeve slidablein saidshell and having a resilient bead at its inner end received in saidannular enlargement andlengageable with said shoulder anda lockingmember slidable within the' sleeve and removable therefrom and havingatits inner end ahead and an annular groove adjacent thereto, said sleeveand locking member being swiveled within the shell; i

v2; In a clasp of'the character described,

an`outer shell having a longitudinal opening with tapered wall andannular enlargement said 'shelll and'having a resilient bead at itsinner end received in said annular enlargement and engageable with saidshoulder and a locking member slidable Within the sleeve and removabletherefrom andhaving a'tits inner end a head and an annulargrooveQ-adjacent thereto, said sleeve and locking member being swiveledwithin the shell and the sleeve provided with longitudinal slits.

In a clasp ofthe character described, an outer shell having alongitudinal opening with tapered wall and an annular enlargement withresultant shoulder, a sleeve slidable in said shell and havinga'resilient bead at its inner end received in said annular enlargementand engageable with said shoulder and a locking member slidab'le withinthe sleeve and removable therefrom and having at its inner end a headand an annular groove adjacent thereto, said sleeve and locking memberbeing swiveled within the shell and the sleeve provided withlongitudinal slits, and a ange upon its outer end engageable with' theadjacent end of the sleeve.

In testimony whereof I affix my signature in presence of two witnesses.

ERIGK J. SWEDLUND.

as` with resultant shoulder, a sleeve slidable in

